i just installed obx-r headers followed with 2.25in downpipe. but with the muffler it came with it was wayy to loud and i was getting tickets. i had my brother whos pretty good with cars get the stock muffler put on the obx-r. do u think that i lose some horsepower? it sounds still pretty loud but it helps a lot.

and i just put an injen cold air intake, u think thats a good choice?

heres a pic

 

someone give me some info please. i mainly want to know if my muffler is making me lose a substantial amout of hp.

 

injen and aem are the best of the best for intakes, so good job there. (golf clap) lol. as for the exhaust. i get that you have the obx racing header and intermediate pipe (i had the same thing on my GS) but what do you mean muffler? is it a catback exhaust system or just a muffler?a muffler should not make it very loud at all. gimme that info and then i can help you.